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Provide more context.<br />
<br />
Likely you're calling mysqli_connect() from PHP.<br />
<br />
So, first dump your phpinfo() output + ensure your hosting environment has install the PHP mysql extension.<br />
<br />
Probably this extension is missing + will have to be installed, to clear your error.
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Provide more context.

Likely you're calling mysqli_connect() from PHP.

So, first dump your phpinfo() output + ensure your hosting environment has install the PHP mysql extension.

Probably this extension is missing + will have to be installed, to clear your error.

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I agree with Julian, I never combine functions like that. &nbsp;Make them separate statements as he shows above.
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I agree with Julian, I never combine functions like that.  Make them separate statements as he shows above.

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Poster has stopped posting, so appears Julian's answer is likely best.
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Poster has stopped posting, so appears Julian's answer is likely best.

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<div class="content wysiwyg-content">
Helloo<br />
<br />
i need to get a one value from a &nbsp;table &nbsp;and store it in a variable using this code &nbsp;<br />
$OwnerName= mysqli_result(mysqli_query<wbr />($con,&quot;SEL<wbr />ECT Name FROM buyer WHERE usersId='$client_id'&quot;),0);<wbr /><br />
but it con't work.<br />
<br />
Please I need your helps!
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Helloo

i need to get a one value from a  table  and store it in a variable using this code  
$OwnerName= mysqli_result(mysqli_query($con,"SELECT Name FROM buyer WHERE usersId='$client_id'"),0);
but it con't work.

Please I need your helps!

Fatal error: Uncaught Error: Call to undefined function mysqli_result()

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.